Warp speed space travel is theoretically possible, but whether or not we will ever get the materials needed to build such a machine is another question, an astrophysicist has said. Professor Geraint Lewis, from the University of Sydney, said the idea of warp speed is part of Einstein's theory of relativity – because it shows we can bend and warp space.

Speaking to ABC News, he said: "If you look at the equation that Einstein gave us, it shows you can bend and warp space so you can travel at any speed you like in the universe. It's theoretically possible, but can we ever build a warp drive? We have hints that the kind of materials that we would need exist in the universe, but whether or not we could get them together and build a warp drive, we still don't know."

Obviously, others have figured that out. To read more, click here.